Springboot Freemaker 模板---发送邮件

添加依赖

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-freemarker</artifactId>
        </dependency>

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
        </dependency>

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-mail</artifactId>
        </dependency>
        <dependency>
            <groupId>org.projectlombok</groupId>
            <artifactId>lombok</artifactId>
        </dependency>
        

application.properties中添加配置

##邮件配置
spring.mail.host=smtp.exmail.qq.com
spring.mail.port=465
spring.mail.username=adc@qq.com
spring.mail.password=123456
spring.mail.protocol=smtp
spring.mail.properties.mail.smtp.auth=true
spring.mail.properties.mail.smtp.starttls.enable=true
spring.mail.properties.mail.smtp.starttls.required=true
spring.mail.properties.mail.smtp.ssl.enable=true
spring.mail.default-encoding=UTF-8


## Freemarker 配置
spring.freemarker.allow-request-override=false
spring.freemarker.allow-session-override=false
spring.freemarker.cache=false
spring.freemarker.charset=UTF-8
spring.freemarker.check-template-location=true
spring.freemarker.content-type=text/html
spring.freemarker.enabled=true
spring.freemarker.expose-request-attributes=false
spring.freemarker.expose-session-attributes=false
spring.freemarker.expose-spring-macro-helpers=true
spring.freemarker.prefer-file-system-access=true
# 这是重点， 会过滤.ftl后缀的文件
spring.freemarker.suffix=.ftl
# spring boot 默认的页面模板存放目录
spring.freemarker.template-loader-path=classpath:/templates/
spring.freemarker.settings.template_update_delay=0
spring.freemarker.settings.default_encoding=UTF-8
spring.freemarker.settings.classic_compatible=true

发送邮件工具类

@Component
public class MailUtil {

    private String sender;

    @Autowired
    private JavaMailSender mailSender;


    private static final Logger logger = LoggerFactory.getLogger(MailUtil.class);


    public void sendMail(String receiver, String title, String text, Boolean isHtml) throws MessagingException {

        MimeMessage mimeMessage = mailSender.createMimeMessage();

        MimeMessageHelper helper = new MimeMessageHelper(mimeMessage, true);

        helper.setFrom(sender);
        helper.setTo(receiver);
        helper.setSubject(title);
        helper.setText(text, isHtml);

        mailSender.send(mimeMessage);
    }
}

import freemarker.template.Configuration;
import freemarker.template.Template;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.ui.freemarker.FreeMarkerTemplateUtils;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RestController;

import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

@RestController
public class HelloController {

    @Autowired
    private MailUtil mailUtil;
    
    @Autowired
    private Configuration configuration;

    @GetMapping("/index")
    public void execNewsInfo()throws Exception{
        Map<String, Object> model = new HashMap();

        List<NewsVo> newsList = new ArrayList<>();

        for (Integer i = 0;i<10;i ++){
            NewsVo po = new NewsVo();
            po.setTitle("测试标题__" + i);
            po.setRefId(String.valueOf(i));
            po.setLink("https://baidu.com/?p=" + i );
            newsList.add(po);
        }

        model.put("newsList", newsList);
        Template template = configuration.getTemplate("mail.ftl");
        String htmlStr = FreeMarkerTemplateUtils.processTemplateIntoString(template, model);
        mailUtil.sendMail("admin.qq.com", "新闻列表", htmlStr, true);
    }
}

mail.ftl 模板详情

<html>
<body>

<h3>新闻列表：</h3>

<table border="1px solid #8968CD" style="border-collapse: collapse;">
    <tr>
        <th>新闻ID</th>
        <th>新闻标题</th>
        <th>新闻链接</th>
    </tr>
    <#list newsList as news>
        <tr>
            <td>${news.refId}</td>
            <td>${news.title}</td>
            <td><a href="${news.link}" target="_blank">查看详情</a></td>
        </tr>
    </#list>
</table>

</body>
</html>